Destry,
Is your truck a chebby or a Jimmy? If it is a chebby I'd go with the 292. If it's a Jimmy I'd think about the 302 since it would be a bolt in swap. 302s are a little bit more spendy than a 292, but they definitely have the wow factor. Very few people outside this forum and others like it would even notice the difference between a 216, 235, 261, 228, 248, 270, 302, or a 292.